Arithmetic and control unit



FIG. 1 is a front, top, right perspective view of an arithmetic andcontrol unit showing my new design;

FIG. 2 is a front, bottom, left perspective view thereof;

FIG. 3 is a front elevational thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is an enlarged perspective view thereof along the lines 9-9 and9′-9′ of FIG. 1.

The broken lines illustrate portions of the arithmetic and control unitthat form no part of the claimed design.

CLAIM The ornamental design for an arithmetic and control unit, asshown.